Tropic-1808 Rat Recombinant protein fused to N-terminal His-Tag produced in E.Coli is a single, non-glycosylated polypeptide chain containing 285 amino acids and having a molecular mass of 29.1 kDa. The Tpc1808 is purified by proprietary chromatographic techniques. Purity >95.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.